Any professional in car repair in Wellington will tell you that drilled rotors are often the preferred type of brake rotor when it comes to better stopping power.
Drilled rotors were first developed for racing and performance vehicles. Slotted rotors are another type of brake rotor that's designed to improve braking, but they do it in a different way than drilled ones. So, which one is better for your car brakes?
The primary benefit of using drilled rotors as opposed to slots is their ability to dissipate heat faster due to the increased surface area. This allows them to be used at higher speeds without over-heating as much as solid discs would. The downside with this design though has always been greater susceptibility towards warping when it comes to track use. Slotted rotors, on the other hand, are more resistant to warping due to their straight-line airflow design that limits turbulence and keeps temperatures consistent throughout. This makes them a good choice for track day enthusiasts who also want high performance brakes.
So, is there one best rotor? Well, it really depends on your application (track vs street) but if you're looking for maximum braking power with less chance of warping at higher speeds, go with drilled ones. If you prefer something more stable in terms of temperature management without sacrificing stopping power when things get hot, choose slotted discs instead. Either way though, make sure they match up well with your car’s brake pads.
If you are unsure of what to get, then the best thing to do is speak to a professional or expert in car repairs in Wellington, who can advice you accordingly, depending on the make and model of car you are using.